September 2016 Service and Repair ManualPlatform ComponentsPart No. 1268556 312-3Platform RotatorThe platform rotator is a hydraulically activatedhelical gear assembly used to rotate the platform160 degrees.How to Remove the PlatformRotatorComponent damage hazard.Mark the platform mountingweldment and the rotator flangebefore removing the platformmounting weldment. Theplatform mounting weldmentmust be replaced in the exactsame position on the rotatorflange as it was before removal.If a new rotator is installed or therotator is disassembled, properalignment can be achieved byrotating the rotator all the way tothe left and then installing theplatform mounting weldment allthe way in the left position.Note: When removing a hose assembly or fitting,the O-ring (if equipped) on the fitting and/or hoseend must be replaced. All connections must betorqued to specification during installation. Refer toSpecifications, Hydraulic Hose and Fitting TorqueSpecifications.1 Remove the platform. Refer to RepairProcedure, How to Remove the Platform.2 Tag and disconnect the electrical connectorfrom the platform angle sensor.3 Tag, disconnect and plug the hydraulic hosesfrom the platform rotator manifold. Cap thefittings on the manifold.Bodily injury hazard. Sprayinghydraulic oil can penetrate andburn skin. Loosen hydraulicconnections very slowly to allowthe oil pressure to dissipategradually. Do not allow oil tosquirt or spray.4 Remove the hose and cable clamp from theplatform support.5 Remove the platform manifold mountingfasteners. Lay the platform manifold to theside.Component damage hazard.Cables can be damaged if theyare kinked or pinched.6 Remove the power to platform electrical outletbox bracket mounting fasteners.7 Remove the power to platform electrical outletbox from the platform and lay it to the side.8 Remove the weld cable from the platformElectrocution/burn hazard.Contact with electrically chargedcircuits could result in death orserious injury. Remove all rings,watches and other jewelry.9 Support the platform mounting weldment, butdo not apply any lifting pressure.10 Remove the eight mounting bolts from theplatform mounting weldment.
